Numerical 3-D Modelling of Overflows

Torben Larsen, L. Nielsen, B. Jensen, E. D. Christensen

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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Abstrakt

The present study uses laboratory experiments to evaluate the reliability of two types of numerical models of sewers systems:

- 1-dimensional model based on the extended Saint-Venant equation including the term for curvature of the water surface (the so-called Boussinesq approximation)

- 2- and 3-dimensional so-called Volume of Fluid Models (VOF-models) based on the full Navier-Stokes equations (named NS3 and developed by DHI Water & Environment)

As a general conclusion, the two numerical models show excellent results when compared with measurements. However, considerable errors occur when inappropriate boundary conditions and grid resolutions are chosen. The paper describes the used physical and numerical models and summarises the results.

OriginalsprogEngelsk
TitelConfernce Proceedings : 11th International Conference on Urban Drainage :  Edinburgh International Conference Centre, Scotland : 11 ICUD: 31st August - 5th September 2008
Antal sider7
Publikationsdato2008
StatusUdgivet - 2008
BegivenhedThe International Conference on Urban Drainage - Edinburgh, Storbritannien
Varighed: 31 aug. 20085 sep. 2008
Konferencens nummer: 11

Konference

KonferenceThe International Conference on Urban Drainage
Nummer11
LandStorbritannien
ByEdinburgh
Periode31/08/200805/09/2008

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Larsen, T., Nielsen, L., Jensen, B., & Christensen, E. D. (2008). Numerical 3-D Modelling of Overflows. I Confernce Proceedings : 11th International Conference on Urban Drainage:  Edinburgh International Conference Centre, Scotland : 11 ICUD: 31st August - 5th September 2008